Results 1 to 10 of about 345,105 (200)
Role of hydrodynamic flows in chemically driven droplet division
New Journal of Physics, 2018 We study the hydrodynamics and shape changes of chemically active droplets. In non-spherical droplets, surface tension generates hydrodynamic flows that drive liquid droplets into a spherical shape.
Rabea Seyboldt, Frank Jülicher
doaj +2 more sources
Visualizing Enhanced Microfluidic Electromembrane Desalination Using Nafion-Coated Heterogeneous Ion-Exchange Membranes [PDF]
MoleculesHeterogeneous ion-exchange membranes (IEMs) are cost-effective but suffer from low electrochemical efficiency due to surface inhomogeneities. While surface coating with homogeneous ionomers is a known modification strategy, its direct impact on electro ...
Hyunwoo Choi +3 more
doaj +2 more sources
Hydrodynamic surfaces with midsection in the form of Lame curve
RUDN Journal of Engineering Research, 2021 General representation of ship geometry is given by the method of slicing the ship hull by three mutually perpendicular planes: vertical symmetry plane which runs along the middle of hull width, horizontal plane which divides the hull into underwater and
Valery V. Karnevich
doaj +1 more source
Generating hydrodynamic surfaces by families of Lame curves for modelling submarine hulls
RUDN Journal of Engineering Research, 2022 This paper investigates the construction of hydrodynamic surfaces, which are defined by algebraic equations and describe the theoretical hull of a vessel. A technique for automation of generating hydrodynamic surfaces is proposed.
Valery V. Karnevich
doaj +1 more source
Analytical surfaces for ship hulls
RUDN Journal of Engineering Research, 2021 The choice of optimal shape of ship hull surface is one of the main problems of ship architects and designs. A choice of the form is based on empirical formulae or on intuition of designers.
Sergey N. Krivoshapko +1 more
doaj +1 more source
Comparisons between seabed and free surface effects on underwater vehicle hydrodynamics
International Journal of Naval Architecture and Ocean Engineering, 2022 This paper presents a numerical study on the hydrodynamic coefficients of the DARPA SUBOFF hull when deeply submerged and near the seabed. The CFD-based model was validated with experimental data, namely experiments involving the SUBOFF and BB2 ...
Xavier Ling +4 more
doaj +1 more source
Vietnam Journal of Mechanics, 2021 This study aims at numerically exploring the behavior of flow fields and nonlinear hydrodynamic coefficients of a horizontal cylinder beneath the free surface flow considering the effects of nonlinear surface waves and various cylinder shapes.
Nguyen Van My +5 more
doaj +1 more source
Numerical Investigation on Hydrodynamic Performance of a Portable AUV
Journal of Marine Science and Engineering, 2021 This paper conducts a numerical investigation on the hydrodynamic performance of a portable autonomous underwater vehicle (AUV). The portable AUV is designed to cruise and perform some tasks autonomously in the underwater world.
Lin Hong +3 more
doaj +1 more source
Energy-Conserved Hydrodynamic Lubricated Components with Wall Slippage
International Journal of Rotating Machinery, 2023 The hydrodynamic thrust slider and journal bearings as well as hydrodynamic lubricated gears with the merit of energy conservation by the wall slippage are reviewed.
Xiaoxu Huang, Yongbin Zhang
doaj +1 more source
Roughness Effects of Textured Surfaces in Hydrodynamic Lubrication
International Journal of Applied Mechanics and Engineering, 2022 Several studies have been conducted to improve and model the lubricated contact between surfaces. The main subjects were defining the hydrodynamic parameters to reduce energy losses and protect the environment.
Youssef Bahi +2 more
doaj +1 more source